package com.im.common.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.*;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spi.service.contexts.SecurityContext;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.ArrayList;
import java.util.List;

/**
 * Swagger2API文档的配置
 *
 * 访问地址：http://localhost:1308/api/swagger-ui/index.html
 */
@Configuration
@EnableSwagger2
public class Swagger2Config {

    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.im.project.controller"))
                .paths(PathSelectors.any())
                .build()
                .securitySchemes(securitySchemes())
                .securityContexts(securityContexts());
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("即时通信API接口文档")
                .description("即时通信")
                .contact(new Contact("admin", null, null))
                .version("1.0")
                .build();
    }

    private List<SecurityScheme> securitySchemes() {
        List<SecurityScheme> list = new ArrayList<>();
        ApiKey apiKey = new ApiKey("Authorization", "Authorization", "header");
        list.add(apiKey);
        return list;
    }

    private List<SecurityContext> securityContexts() {
        List<SecurityContext> list = new ArrayList<>();
        list.add(SecurityContext.builder().securityReferences(defaultAuth()).forPaths(PathSelectors.regex("^(?!auth).*$")).build());
        return list;
    }

    private List<SecurityReference> defaultAuth() {
        List<SecurityReference> result = new ArrayList<>();
        AuthorizationScope authorizationScope = new AuthorizationScope("global", "accessEverything");
        AuthorizationScope[] authorizationScopes = new AuthorizationScope[1];
        authorizationScopes[0] = authorizationScope;
        result.add(new SecurityReference("Authorization", authorizationScopes));
        return result;
    }
}
